- if (group_rq && rt_rq_throttled(group_rq))+ /*+ * Don't enqueue the group if its throttled, or when empty.+ * The latter is a consequence of the former when a child group+ * get throttled and the current group doesn't have any other+ * active members.+ */+ if (group_rq && (rt_rq_throttled(group_rq) || !group_rq->rt_nr_running)) return;